[RC5] Cracking 40 bits in realtime
wooledge at kellnet.com
Fri Jan 2 20:05:07 EST 1998
gindrup at okway.okstate.edu (gindrup at okway.okstate.edu) wrote:
> Also, don't forget to try pretty much every decompression you can
> think of since most *real* encryptors prefer to compress before
Ah! So, in addition to matching English (or the originator's language)
letter/word frequency tables, do a quick match of the first few bytes
of each decrypted message against the magic numbers found in /etc/magic.
Obviously, that would slow things down a bit.
# Greg Wooledge # "Daddy, why do those people have to
# wooledge at kellnet.com # use Microsoft Windows?"
# http://kellnet.com/wooledge/main.html # "Don't stare, son; it's not polite."
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